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Helena
Veteran
Joined: 02 Apr 2003
Posts: 1114
Location: Den Dolder, The Netherlands
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 Posted: Mon Dec 01, 2003 9:21 am Post subject: end_request: I/O error, dev hdc, sector 0 |
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Since a couple of weeks my 2.6 kernel installation behaves strangely. It keeps putting out the following error | Code: | | end_request: I/O error, dev hdc, sector 0 |
repeated about a 1000 times in the kernel logs in /var/log/kernel. Also, probably related, dmesg doesn't work any more but instead repeats this same error message about 50 times.
I'm using a test11 kernel right now but the error was already present in a test9 kernel.
Does anybody know where this error comes from?
/EDIT:
New and even stranger error messages. After reboot, inititally dmesg works again and looks OK. I thought this occurred because I had edited /etc/fstab. I had introduced a mount point /dev/dvdrom but I changed it back to /mnt/cdrom. Unfortunately this wasn't the problem. Output from dmesg: | Code: | usb-0000:00:03.2-1.2
eth0: Media Link On 100mbps full-duplex
Debug: sleeping function called from invalid context at mm/slab.c:1856
in_atomic():1, irqs_disabled():0
Call Trace:
[<c011d632>] __might_sleep+0xab/0xcb
[<c013f3f0>] kmem_cache_alloc+0x69/0x6b
[<c014e4a3>] __get_vm_area+0x21/0xf8
[<c014e5ad>] get_vm_area+0x33/0x37
[<c011a9e4>] __ioremap+0xb3/0xfa
[<c011aa54>] ioremap_nocache+0x29/0xa8
[<f9ac74a9>] os_map_kernel_space+0x68/0x6c [nvidia]
[<f9ad9a97>] __nvsym00568+0x1f/0x2c [nvidia]
[<f9adbbb6>] __nvsym00775+0x6e/0xe0 [nvidia]
[<f9adbc46>] __nvsym00781+0x1e/0x190 [nvidia]
[<f9add6cc>] rm_init_adapter+0xc/0x10 [nvidia]
[<f9ac3ee0>] nv_kern_open+0xf5/0x232 [nvidia]
[<c015c88c>] chrdev_open+0xfb/0x227
[<c01b5629>] devfs_open+0xf4/0x111
[<c0152dd2>] dentry_open+0x14d/0x21b
[<c0152c83>] filp_open+0x62/0x64
[<c0153102>] sys_open+0x55/0x85
[<c010afd7>] syscall_call+0x7/0xb
Debug: sleeping function called from invalid context at mm/slab.c:1856
in_atomic():1, irqs_disabled():0
Call Trace:
[<c011d632>] __might_sleep+0xab/0xcb
[<c013f3f0>] kmem_cache_alloc+0x69/0x6b
[<c014e4a3>] __get_vm_area+0x21/0xf8
[<c014e5ad>] get_vm_area+0x33/0x37
[<c011a9e4>] __ioremap+0xb3/0xfa
[<c011aa54>] ioremap_nocache+0x29/0xa8
[<f9ac74a9>] os_map_kernel_space+0x68/0x6c [nvidia]
[<f9ad9a97>] __nvsym00568+0x1f/0x2c [nvidia]
[<f9adbbb6>] __nvsym00775+0x6e/0xe0 [nvidia]
[<f9adbc46>] __nvsym00781+0x1e/0x190 [nvidia]
[<f9add6cc>] rm_init_adapter+0xc/0x10 [nvidia]
[<f9ac3ee0>] nv_kern_open+0xf5/0x232 [nvidia]
[<c015c88c>] chrdev_open+0xfb/0x227
[<c01b5629>] devfs_open+0xf4/0x111
[<c0152dd2>] dentry_open+0x14d/0x21b
[<c0152c83>] filp_open+0x62/0x64
[<c0153102>] sys_open+0x55/0x85
[<c010afd7>] syscall_call+0x7/0xb
agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 4x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 4x mode
end_request: I/O error, dev hdc, sector 0 |
and the last line is repeated about 50 times |
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ckdake
l33t
Joined: 10 Apr 2003
Posts: 889
Location: Atlanta, GA
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| Posted: Mon Dec 01, 2003 4:58 pm Post subject: |
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is hdc an optical drive? I had that error message when using phpsysinfo when there was no media in my cd drive. I solved it by taking out the CD drive since that computer is a server. With my current computer, I can get that error trying to access the drive with no media in it so perhaps that is what you are doing?
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Helena
Veteran
Joined: 02 Apr 2003
Posts: 1114
Location: Den Dolder, The Netherlands
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| Posted: Mon Dec 01, 2003 5:29 pm Post subject: |
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| /dev/hdc is indeed a DVD-ROM drive and there's no disc in it. But that should be no problem, true? |
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ckdake
l33t
Joined: 10 Apr 2003
Posts: 889
Location: Atlanta, GA
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| Posted: Mon Dec 01, 2003 5:50 pm Post subject: |
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I tend to look at it as a "no cd in cd-rom drive" error message. I think it comes from a "fopen" system call do /dev/hdc so somewhere in your kernel or one of your drives, it tries to open the device for read or write access before it checks to see if it is there or not. Most likely it is a little bug in the kernel and will be fixed in the next release. I am using mm-sources test10 and I haven't noticed the error anywhere, So whenever test11 gets on there I'll keep my eyes open.
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Roc
n00b
Joined: 19 Jul 2002
Posts: 35
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| Posted: Thu Dec 04, 2003 3:36 pm Post subject: |
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| On my system, this error message appears when KsCD is running under KDE but no CD is in the drive. |
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fleed
l33t
Joined: 28 Aug 2002
Posts: 756
Location: London
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| Posted: Thu Dec 04, 2003 3:53 pm Post subject: |
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I think I might have seen this error when I patched the kernel with the supermount-ng code. I get this:
| Code: | | end_request: I/O error, dev 02:00 (floppy), sector 0 |
and am running a 2.4 kernel (with supermount-ng). |
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zebbedi
Tux's lil' helper
Joined: 05 Sep 2003
Posts: 123
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| Posted: Wed Dec 31, 2003 9:33 am Post subject: |
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I had exact same problem. Ive got another thread open about this issue.
If you put a CD in the drive it stops.
Later i found out, that if i killed off the kscd process.. the messages stopped also.
Not sure what it was trying todo!?!? |
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